# 74ACT14MTC

**onsemi** · Gates · TSSOP-14

74ACT14MTC from onsemi, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | I0 | input | Schmitt-trigger input of inverter 0; input voltage range 0 to VCC. |
| 2 | O0 | output | Inverted output of inverter 0; sources/sinks 24 mA. |
| 3 | I1 | input | Schmitt-trigger input of inverter 1; input voltage range 0 to VCC. |
| 4 | O1 | output | Inverted output of inverter 1; sources/sinks 24 mA. |
| 5 | I2 | input | Schmitt-trigger input of inverter 2; input voltage range 0 to VCC. |
| 6 | O2 | output | Inverted output of inverter 2; sources/sinks 24 mA. |
| 7 | GND | power_in | Ground pin. |
| 8 | O3 | output | Inverted output of inverter 3; sources/sinks 24 mA. |
| 9 | I3 | input | Schmitt-trigger input of inverter 3; input voltage range 0 to VCC. |
| 10 | O4 | output | Inverted output of inverter 4; sources/sinks 24 mA. |
| 11 | I4 | input | Schmitt-trigger input of inverter 4; input voltage range 0 to VCC. |
| 12 | O5 | output | Inverted output of inverter 5; sources/sinks 24 mA. |
| 13 | I5 | input | Schmitt-trigger input of inverter 5; input voltage range 0 to VCC. |
| 14 | VCC | power_in | Supply voltage; ACT recommended range 4.5 V to 5.5 V, absolute maximum -0.5 to +7.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSSOP-14 |
| Category | Logic ICs |
| Pins | 14 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 |  | 5.5 | V | ACT | 2 |
| Input Voltage | VI | 0 |  |  | V | max = VCC | 2 |
| Output Voltage | VO | 0 |  |  | V | max = VCC | 2 |
| Operating Temperature | TA | -40 |  | 85 | °C |  | 2 |
| Supply Voltage | VCC | -0.5 |  | 7 | V |  | 1 |
| DC Input Diode Current | IIK | -20 |  | 20 | mA | VI = -0.5 V / VI = VCC + 1.5 V | 1 |
| DC Input Voltage | VI | -0.5 |  |  | V | max = VCC + 1.5 V | 1 |
| DC Output Diode Current | IOK | -20 |  | 20 | mA | VO = -0.5 V / VO = VCC + 0.5 V | 1 |
| DC Output Voltage | VO | -0.5 |  |  | V | max = VCC + 0.5 V | 1 |
| DC Output Source or Sink Current | IO | -50 |  | 50 | mA |  | 1 |
| DC VCC or Ground Current per Output Pin | ICC or IGND | -50 |  | 50 | mA |  | 1 |
| Storage Temperature | TSTG | -65 |  | 150 | °C |  | 1 |
| Junction Temperature | TJ |  |  | 140 | °C |  | 1 |
| Minimum HIGH Level Input Voltage | VIH | 2 | 1.5 |  | V | VCC=4.5 V, VOUT = 0.1 V or VCC - 0.1 V, TA=-40C to +85C | 4 |
| Maximum LOW Level Input Voltage | VIL |  | 1.5 | 0.8 | V | VCC=4.5 V, VOUT = 0.1 V or VCC - 0.1 V, TA=-40C to +85C | 4 |
| Minimum HIGH Level Output Voltage | VOH | 4.4 | 4.49 |  | V | VCC=4.5 V, IOUT = -50 µA, TA=-40C to +85C | 4 |
| Minimum HIGH Level Output Voltage | VOH | 5.4 | 5.49 |  | V | VCC=5.5 V, IOUT = -50 µA, TA=-40C to +85C | 4 |
| Minimum HIGH Level Output Voltage | VOH | 3.76 |  |  | V | VCC=4.5 V, VIN = VIL or VIH, IOH = -24 mA, TA=-40C to +85C | 4 |
| Minimum HIGH Level Output Voltage | VOH | 4.76 |  |  | V | VCC=5.5 V, VIN = VIL or VIH, IOH = -24 mA (Note 4), TA=-40C to +85C | 4 |
| Maximum LOW Level Output Voltage | VOL |  | 0.001 | 0.1 | V | VCC=4.5 V, IOUT = 50 µA, TA=-40C to +85C | 4 |
| Maximum LOW Level Output Voltage | VOL |  |  | 0.44 | V | VCC=4.5 V, VIN = VIL or VIH, IOL = 24 mA, TA=-40C to +85C | 4 |
| Maximum Input Leakage Current | IIN | -1 |  | 1 | µA | VCC=5.5 V, VI = VCC, GND, TA=-40C to +85C | 4 |
| Maximum Hysteresis | VH(MAX) |  |  | 1.4 | V | VCC=4.5 V, TA = Worst Case | 4 |
| Maximum Hysteresis | VH(MAX) |  |  | 1.6 | V | VCC=5.5 V, TA = Worst Case | 4 |
| Minimum Hysteresis | VH(MIN) | 0.4 |  |  | V | VCC=4.5 V, TA = Worst Case | 4 |
| Minimum Hysteresis | VH(MIN) | 0.5 |  |  | V | VCC=5.5 V, TA = Worst Case | 4 |
| Maximum Positive Threshold | Vt+ |  |  | 2 | V | VCC=4.5 V, TA = Worst Case | 4 |
| Minimum Negative Threshold | Vt− | 0.8 |  |  | V | VCC=4.5 V, TA = Worst Case | 4 |
| Maximum ICC/Input | ICCT |  | 0.6 | 1.5 | mA | VCC=5.5 V, VI = VCC - 2.1 V | 4 |
| Minimum Dynamic Output Current | IOLD | 75 |  |  | mA | VCC=5.5 V, VOLD = 1.65 V Max. (Note 5) | 4 |
| Minimum Dynamic Output Current | IOHD |  |  | -75 | mA | VCC=5.5 V, VOHD = 3.85 V Min. (Note 5) | 4 |
| Maximum Quiescent Supply Current | ICC |  | 2 | 20 | µA | VCC=5.5 V, VIN = VCC or GND, TA=-40C to +85C | 4 |
| Propagation Delay | tPLH | 3 | 8 | 11 | ns | VCC=5.0 V, CL=50 pF, TA=-40C to +85C (25C: min 3.0, typ 8.0, max 10.0) | 5 |
| Input Capacitance | CIN |  | 4.5 |  | pF | VCC = OPEN | 5 |
| Power Dissipation Capacitance | CPD |  | 80 |  | pF | ACT, VCC = 5.0 V | 5 |

## CAD (KiCad official)

- Symbol: `74ACT14MTC`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `74act14mtc-etched.step` / `74act14mtc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74act14mtc.step` / `74act14mtc.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/74act14mtc-d.pdf) (11 pp, sha256 `da797f4358029ff7`, retrieved 2026-10-24, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/74act14mtc-datasheet.pdf)